Date: Tue, 16 Apr 2002 08:47:22 -0500 (CDT) From: Robert Johannes <rjohanne@piper.hamline.edu> To: "M. Warner Losh" <imp@village.org> Cc: scsi@FreeBSD.ORG Subject: Re: How to get 160MB/s LVD drives to use 160MB/s Message-ID: <Pine.GSO.4.21.0204160844310.6650-100000@mendeleev.hamline.edu> In-Reply-To: <20020416.000750.89789192.imp@village.org>
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Ultra2 160mb/s drives need an SCA adapter that is designed to support ultra2 160mb/s. If your SCA adapter is a plain-old 40mb/s version, that would be why you are only getting that speed. robert On Tue, 16 Apr 2002, M. Warner Losh wrote: > I'm runing 4.5-release. From my dmesg: > > Notice that I'm only getting 40MB/s transfers. The BIOS detects them > at 40MB/s, even though I have the max transfer set to 160. It does > this with one or two drives on the bus. They are SCA drives in > adapters (any chance it is a jumper on the adapter?). > > How do I get 160MB/s on these drives? As near as I can tell from the > spec sheets, they both should support 160MB/s. > > Warner > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-scsi" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message
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